Windmill



3 Sheets-Sheet 1.

(ModeL) A. ROLAND.

WINDMILL.

a w L. W. m m M m I p, 4 s Z/ Al 5 ,k i m P NM w? a m W u 6 1m M Z% 3Sheets-Sheet 2,

(ModeL) G. A. ROLAND.

WINDMILL.

Patented Sept. 20,1881.

(Mode1.) 3 Sheets-Sheet 3.

G. A. ROLAND.

WINDMILL.

Patented Sept. 20,1881.

UNITED STATES PATENT OFFICE.

GEORGE A. ROLAND, OF WASEUA, MINNESOTA.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 247,409, datedSeptember 20, 1881. Application filed January 22, 1881. (Model) To allwhom it may concern Be it known that I, GEORGE A. ROLAND, a citizen ofthe United States, residing at Waseca,in the county of Waseca and Stateof Minnesota, have invented certain new and useful Improvements inWind-Powers; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it apro pertains to make and use the same,reference being had to the accompanying drawings, and to letters orfigures of reference marked thereon, which form a part of thisspecification.

Figure 1 is a side elevation of a wind-wheel r 5 embodying the presentinvention. Fig. 2 is a detail showing, in side elevation, the turn-tableand the operative mechanism connecting with it. Fig. 3 is a frontelevation of the windwheel. Fig. dis an elevation (enlarged) viewed fromthe side opposite to that shown in Fig. 1; Figs. 5 and 6, details,showing the foot ofthe turn-table and one of the bearing-plates.

This invention relates to that class of devices which utilize the forceof the wind for motive or 2 5 operative purposes and the noveltyconsistsin the detailsof theconstruetion and combination of the severalparts of this wind-wheel and its connecting mechanism,whereby a veryefiicient and durable device is produced, all as will now 3o be more indetail set out and explained.

In the accompanying drawings, A denotes any suitable upright frame, inthe upper part of which is mounted the turn-table B in thebearing-plates 0, one of which is in the top of 3 5 the frame and'theother at a suitable distance below, to accommodate the lower part, B, ofthe turn-table, which rests on it. These bearing-plates are beveled onthe inner circumference at c, and this bevel is especially adapted 0 tothose on the turn-table, where it rests in the bearings. This beveledinner edge of O is notched at c to allow the lugs b and b on theturn-table to pass through. These lugs are not in the same vertical1ine,-and serve to hold the 4 5 turn-table in said bearings, but do notinterfere with the revolution of the turn-table.

The sail-frame D, made in any suitable Way, is properly mounted on shaftE, on which it is revolved. This has suitable bearin gs, 11 on theturn-table B. The main sails F are hinged or pivoted in the slotf attheir outer ends to the large circle d of frame D and at their innerends on the smaller circle d, and these, as well as the supplementalside-wings, F, which are pivoted in like manner, but to a lateralextension, D, of the frame, are moved in and out of the wind by means ofthe ring G or ring g, which connect with all of the wings F and F, andare simultaneously operated by means of crankarms Hand H. These arepivoted to the frame of the wheel. One end of each connects with thering G or ring g, and to the other a rod, h, is attached, which connectswith crank-arms H attached to the frame and operating in like manner ascrank-arms H. These last secure motion from the loose head or sleeve Ion the shaftE inside of the wheel, to which sleeve said crank-arms H areproperly connected. This head or sleeve I has motion from the lever K atthe lower part of the frame A, with which itis connected by rod is andrope or chain It and suitable intermediate pulleys and other means, orby the small vane L, which is hinged on the bent end Z of theupwardlyextending arm I. This arm is pivoted to the turn-table at itslower end, and by the bar a is connected to the said sleeve or head I.Thus, when the 7 wind acting on this vane throws it backward,

the sails will be automatically turned out of the wind, like as maybedone by hand, by means of the lever K, and which lever may be secured atany desired point or height. The spring r, connecting the arm Z withturn-table, will serve to return it into proper position when the windgoes down, and thus the sails will set to the wind. The sliding spring8, connecting with the vane L and the bent end l of arm Z, will causethe vane to resume an upright position when the force of the windallows.

The usual pitman, M, is attached to acrankarm or eccentric, e, on theend of the shaft E, and passing downward to the lower end of the frame.To this lower end of the pitman are attached the ratchet-dogs N,corresponding in length to the stroke of the pitman, and placed 5 one oneach side of the ratchet-wheel O, which 4 is suitably hung in such amanner that at the downward stroke one of the springs I, acting on oneof the arms m of the pitman M, will press the dog on the opposite sideagainst the mo wheel,andin the upward stroke the otherspring will act onthe other dog and cause it to act on the wheel, which in this way willhave continuous rotary motion.

The usual tail-vane, Q, is attached to the Wind-wheel.

On a large wheel there maybe two or more sections of sails on the mainwheel, and so adapted to operate as by lengthening the connection-armsand like mechanical means that one section shall present a more obtuseangle to the wind than the other, but at the same time will, when turnedout of the wind, stand in the same line with the rest.

The manner now adopted to pivot the outer end of the sails in theframeto Wit, by means of the slot f-affords greater security not only tothe position of the sail, but also of the ring which passes through it.

The action of the small vane L is so sure, as well as automatic, that itserves a most useful purpose in insuring a regular and safe action ofthe vanes in any force of wind.

The ease and certainty of the operation of the means for changing thevertical to a rotary motion is of large value in devices of thischaracter.

Having thus described my invention, what I consider new, and desire tosecure by Letters Patent, is-- l. In a wind-wheel, the combination ofthe turntable B, having depending part B and lugs b I), withbearing-plates O, beveled on their inner edge at 0 and slotted at 0,substantially as shown and described.

7 2. The arm I, having on its outer end the hinged vane L, provided withspring 8, and pivoted to the turn-table B, and connected also thereto byspring 1', combined with the movable head I and the wind-wheel,substantially as shown and described.

3. In combination with a wind-Wheel, the pitman M, having on its lowerend the arms m and ratchet-dogs N, with springs P and wheel 0,substantially as shown, and for the purposes set forth.

4. The combination of frame D D, rings 01, movable rings G and g withvanes F F, slotted atf, crank-arms H, H, and H sleeve I, and bar 6, alloperated substantially as described, and for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE A. ROLAND.

Witnesses:

J. L. OLAGHORN. CHAS. O. OLAeHoRN.

